Installing a performance-oriented transmission is crucial when building a boosted 1.8 liter Miata engine. This is because the stock transmission is not designed to handle the increased power and torque produced by a boosted engine, and can easily fail under the stress. A stronger transmission will ensure that the power is transferred to the wheels efficiently, resulting in improved acceleration and performance.
There are a number of different aftermarket transmissions available for the Miata, each with its own advantages and disadvantages. Some of the most popular options include the Mazda 6-speed manual transmission, the Ford Racing 5-speed manual transmission, and the Tremec T56 6-speed manual transmission. The best transmission for a particular application will depend on the specific goals of the build, as well as the budget.
